Story Behind the Science
Story Behind the Science: Development of the Periodic Table [Pdf]
Article describing the history of the development of the periodic table of elements, particularly the work of Dmitrii Ivanovich Mendeleev.
Khan Academy
Khan Academy: The Periodic Table, Electron Shells, and Orbitals
The Bohr model and atomic orbitals. Using an element's position in the periodic table to predict its properties, electron configuration, and reactivity.
Society for Science and the Public
Science News for Students: Heaviest Named Element Is Official
Describes the discovery and naming of copernicum, the heaviest element on the Periodic Table, named after the 16th century scientist Nicolaus Copernicus.
Society for Science and the Public
Science News for Students: The Newest Elements Finally Have Names
Nihonium? Tennessine? These aren't body parts or medicines. They're among the names just given to the four newest superheavy elements.